As I don't know the specific 'the day you went away story', it's hard to say. But it could be a story about a young girl and her best friend. The best friend leaves, and the young girl is the main character dealing with the loss.
It could be a story about a family. A family member, say a father, goes away. The mother and children are then the main characters. They each have their own ways of reacting to the father's departure. The children might be confused and sad, while the mother has to be strong for them. And throughout the story, we see how they all grow and change because of this event.
In 'went the day well story', the main characters are indeed the German invaders and the villagers. The German soldiers are portrayed as menacing and overconfident. Among the villagers, there could be a variety of characters. There might be a village elder who has seen a lot in life and can offer valuable advice. There could be a brave young man who is not afraid to take risks and lead the charge against the invaders. And there could be a motherly figure who takes care of the others during the chaos. All of these characters, both the invaders and the defenders, are crucial in making the story what it is, with their different motives, actions, and reactions throughout the story.
The 'the day you went away story' could be a fictional account of a character's life - changing moment when someone dear to them went away. It might start with the day being like any other normal day, but then something happened that led to the departure. The story could then explore how the character copes with this new reality, how they deal with the empty space left behind, and how their relationships with other people are affected as a result.
The family members themselves are likely the main characters. It could be the parents, children, grandparents, or a combination of them.
I'm not sure specifically without reading it, but likely there's the person who fired the gun. There might also be witnesses or those affected by the event of the gun going off.
I don't know the 'day 9 story', so I can't tell who the main characters are.
Since I don't know the exact story, it could be parents if it's a family - related situation. Maybe a mother or a father who has to take the children away for some reason, or it could be social workers if they are taking children away due to family problems.
In the Spirited Away original story, Chihiro is of course a main character. She's the young girl who gets thrown into the spirit world and has to find her way out. Her parents, though they are quickly turned into pigs, are important as they are the reason for Chihiro's journey. Haku is a significant character. He seems to have a mysterious past and a connection to Chihiro. He helps her navigate the dangerous bathhouse world. Yubaba, the witch who runs the bathhouse, is a powerful and somewhat villainous character. She makes Chihiro work hard. And Zeniba, Yubaba's sister, also plays an important role later in the story.
I'm not sure without more context, but it could be a story about a young couple. Maybe one of them vanishes.
There could be various main characters. If it's a corporate training day story, the main characters might be the employees who are being trained, the trainer who is leading the session, and perhaps a manager who is observing the training. In a sports training day story, it would likely be the athletes and their coaches.
The main character is Phil Connors. He's a Pittsburgh TV weatherman who travels to Punxsutawney for the Groundhog Day event. Alongside him, Rita Hanson is a significant character. She's Phil's producer and love interest. There are also various townspeople in Punxsutawney who are part of Phil's repeated day experiences, such as Ned Ryerson, an old acquaintance of Phil's who he keeps running into during the time loop.